Video: Expert: Airstrikes alone won't deter ISIL

Video: Expert: Airstrikes alone won't deter ISIL

As President Barack Obama signals he's shifting his focus away from airstrikes in Iraq as an imminent option for slowing a fast-moving Islamic insurgency, a defense expert explains the challenges in targeting them as they move toward Baghdad.

As President Barack Obama signals he's shifting his focus away from airstrikes in Iraq as an imminent option for slowing a fast-moving Islamic insurgency, a defense expert explains the challenges in targeting them as they move toward Baghdad.

As President Barack Obama signals he's shifting his focus away from airstrikes in Iraq as an imminent option for slowing a fast-moving Islamic insurgency, a defense expert explains the challenges in targeting them as they move toward Baghdad.